33342401 has 4 divisors (see below), whose sum is σ = 33388992. Its totient is φ = 33295812.

The previous prime is 33342383. The next prime is 33342481. The reversal of 33342401 is 10424333.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10424333 = 181 ⋅57593.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33342401 is a prime.

It is a super-2 number, since 2×33342401² = 2223431408889602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33342481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22205 + ... + 23658.

It is an arithmetic number, because the mean of its divisors is an integer number (8347248).

Almost surely, 2^33342401 is an apocalyptic number.

It is an amenable number.

33342401 is a deficient number, since it is larger than the sum of its proper divisors (46591).

33342401 is an equidigital number, since it uses as much as digits as its factorization.

33342401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46590.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 33342401 is about 5774.2879214670. The cubic root of 33342401 is about 321.8589746758.

Adding to 33342401 its reverse (10424333), we get a palindrome (43766734).

The spelling of 33342401 in words is "thirty-three million, three hundred forty-two thousand, four hundred one".